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应用二次正交旋转组合的设计方法,研究了在不同的天敌密度、害虫密度、温度和光照时间的动态系统中,真水狼蛛对稻田主要害虫褐飞虱的捕食作用。得出其控制作用的数学模型为:y=27.4087+3.1667 x_1+6.8333 x_2-1.1667 x_3+0.5000 x_4-0.4258 x_1~2-0.9258 x_2~2-3.1758 x_3~2+.2500 x_1x_2+0.5000 x_1x3-1.5000 x_3x_4通过模型的主效应分析.得出了各环境因子对天敌捕食作用的影响。真水狼蛛对褐飞虱的日捕食量为19.372头。
The quadratic orthogonal rotation combination design method was used to study the predation of Psammophila nigromaculata on the brown planthopper (BPNN), a major insect pest in paddy fields, in different dynamic systems of natural enemies density, pest density, temperature and illumination time. The mathematical model of the control effect is: y = 27.4087 + 3.1667 x_1 + 6.8333 x_2-1.1667 x_3 + 0.5000 x_4-0.4258 x_1 ~ 2-0.9258 x_2 ~ 2-3.1758 x_3 ~ 2 + .2500 x_1x_2 + 0.5000 x_1x3-1.5000 x_3x_4 Through the main effect analysis of the model, the influence of each environmental factor on the predation of natural enemies was obtained. The true water wolf spider on the brown planthopper daily predation is 19.372.